Raman Sensing Signal (image) Princeton University, Engineering School Share Print E-Mail Caption This graph shows the boosted Raman signal (red) vs. an unenhanced signal (blue). The Princeton sensor uses a technique known as surface enhanced Raman scattering (SERS), to enhance the signals. By using a new sensor architecture for gathering and boosting the signals, the chip is a billion times more sensitive than was possible without SERS enhancement. Credit Stephen Y. Chou Usage Restrictions Please credit Stephen Y. Chou Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.